diff --git a/file_manager.py b/file_manager.py
index f31af0c..9b0f400 100644
--- a/file_manager.py
+++ b/file_manager.py
@@ -2,8 +2,8 @@ import datetime
 import json
 import logging
 import os
-import shutil
 import re
+import shutil
 
 supported_versions = ["bukkit", "paper", "spigot"]
 
@@ -102,6 +102,15 @@ def get_path_from_extension(filename) -> str or None:
         return None
 
 
+def filter_directory_contents(desired_extension: str, directory_contents: list[str]):
+    filtered_list = []
+    for item in directory_contents:
+        _, ext = os.path.splitext(item)
+        if ext.lower() == desired_extension:
+            filtered_list.append(item)
+    return filtered_list
+
+
 def kebab_to_camel_case(s: str) -> str:
     parts = s.split('-')
     return parts[0] + ''.join(part.title() for part in parts[1:])